100 brown anoles (a type of lizard) on a large raft of trees and other vegetation (dislodged by a hurricane) wash ashore an island with a large population of ground-dwelling curly-tailed lizards, but no native anoles. Curly-tailed lizards are important predators of brown anoles. Brown anoles with shorter legs are better at climbing up bushes and small trees to avoid the predatory curly-tailed lizards. (Longer-legged brown anoles have difficulty climbing twigs to avoid curly-tailed lizards.) If the curly-tailed lizards were wiped out by a hurricane (along with 75% of the population of brown anoles), so that the island became predator-free, what would we expect to be true for the remaining population of brown anoles? Group of answer choices: 1. Genetic drift would likely increase in importance relative to natural selection in the evolution of the brown anole population. 2. The lizards would continue to avoid the ground. 3. The population would soon overrun its food supply until going extinct. 4. Natural selection on leg length would become stronger.
Added by Martin M.
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If the Curly tailed lizards were wiped out by a hurricane (along with 75% of the population of brown anoles), so that the island became predator-free, what would we expect to be true for the remaining population of brown anoles? Since the curly-tailed lizards Show more…
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Anoles are a family of lizards found throughout the Americas. Green anoles, Anolis carolinensis, are native to a specific area of Florida. In this area, the primary territory of green anoles was once along the ground and in low-level branches. However, the introduction of brown anoles, Anolis sagrei, from Cuba forced green anoles to shift their territory to the tops of trees. The branches at the treetops are smoother and thinner than those close to the ground. Over time, the toe pads of the green anoles have become larger and stickier.
Sri K.
A scientist studies a population of anole lizards to determine whether or not the population is evolving. Which of the following conditions must exist for Hardy-Weinberg equilibrium to be maintained? Select all that apply: - Females prefer to mate with males that have brighter dewlaps. - The population of lizards is small. - No lizards migrate into or out of the population. - A new mutation occurs within the population. - Natural selection is not occurring in the population. In a population of anole lizards living in a dark, forest habitat a researcher discovers that 86% of all males have a brightly colored dewlap while only 14% have a darker colored dewlap. If we assume all Hardy-Weinberg conditions are met over multiple generations, what should the researcher expect to observe after 5 years of studying the population? Select all that apply. - Unique mutations occurring within the population. - Evolution occurring within the population. - No change in the allele frequencies in the population over time. - 86% of lizards should have darker dewlaps and 14% of lizards should have brighter dewlaps. - 14% of lizards should have darker dewlaps and 86% of lizards should have brighter dewlaps.
Josee P.
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